
Schneider Electric Circuit breaker, ComPacT NSXm 160N, 50KA/415VAC, 4 poles 4D (neutral fully protected), TMD trip unit 125A, lugs/busbars C12N4TM125B
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Product Description
Schneider Electric C12N4TM125B Circuit breaker ComPacT NSXm N 90kA/230V 50kA/400V-with thermomagnetic protection-TM125D 4p bolt 125A.
Technical Specifications
- Manufacturer part number (MPN)
- C12N4TM125B
- EAN / GTIN
- 3606481991744
- HS code
- 8536.90
- Sales unit
- pcs
- Trip unit
- TM125D
- Range
- ComPacT
- Product name
- ComPacT NSXm
- Device short name
- NSXm 160N
- Product or component type
- Circuit breaker
- Device application
- Distribution
- Poles description
- 4P
- Protected poles description
- 4D
- Neutral position
- Left
- [In] rated current
- 125 A at 40 °C
- [Ue] rated operational voltage
- 440 V AC 50/60 Hz
- Network type
- AC
- Network frequency
- 50/60 Hz
- Suitability for isolation
- Yes conforming to IEC 60947-2
- Utilisation category
- Category A
- [Icu] rated ultimate short-circuit breaking capacity
- 90 kA Icu at 220...240 V AC 50/60 Hz conforming to IEC 60947-2; 50 kA Icu at 380...415 V AC 50/60 Hz conforming to IEC 60947-2; 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
- Performance level
- N 50 kA 415 V AC
- Trip unit name
- TM-D
- Trip unit technology
- Thermal-magnetic
- Trip unit protection functions
- LI
- Control type
- Toggle
- Circuit breaker mounting mode
- Fixed
- [Ui] rated insulation voltage
- 800 V AC 50/60 Hz
- [Uimp] rated impulse withstand voltage
- 8 kV
- [Ics] rated service short-circuit breaking capacity
- 90 kA at 220...240 V AC 50/60 Hz conforming to IEC 60947-2; 50 kA at 380...415 V AC 50/60 Hz conforming to IEC 60947-2; 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2
- Mechanical durability
- 20000 cycles
- Electrical durability
- 20000 cycles at 440 V In/2; 10000 cycles at 440 V In
- Power dissipation per pole
- 9.3 W
- Mounting support
- Backplate
- Mounting position
- Horizontal and vertical; Flat on the back
- Upside connection
- Front
- Downside connection
- Front
- Connection terminals
- compression lug/busbar
- Connection pitch
- 35 mm with spreaders; 27 mm without spreaders
- 9 mm pitches
- 12 module
- Trip unit rating
- 125 A at 40 °C
- Long-time pick-up adjustment type Ir (thermal protection)
- Adjustable
- [Ir] long-time protection pick-up adjustment range
- 0.7...1 x In
- Long-time protection delay adjustment type tr
- Fixed
- Neutral protection settings
- 1 x Ir (4D)
- Instantaneous protection pick-up adjustment type Ii
- Fixed
- [Ii] instantaneous protection pick-up adjustment range
- 1250 A
- Earth-leakage protection
- Without
- Number of slots for electrical auxiliaries
- 1 slot(s) for auxiliary switch OF; 1 slot(s) for alarm switch SD; 1 slot(s) for voltage release MN or MX
- Local signalling
- Flag (green) for presence of auxiliary contacts
- Width (W)
- 108 mm
- Height (H)
- 137 mm
- Depth (D)
- 80 mm
- Product weight
- 1.42 kg
- Colour
- Grey (RAL 7016)
- Standards
- EN/IEC 60947-2
- Overvoltage category
- III
- Electrical shock protection class
- Class II on front face
- Pollution degree
- 3 conforming to IEC 60664-1
- IP degree of protection
- IP40 conforming to IEC 60529
- IK degree of protection
- IK07 conforming to IEC 62262
- Ambient air temperature for operation
- -25…70 °C
- Ambient air temperature for storage
- -50…85 °C
- Relative humidity
- 0…95 %
- Operating altitude
- 2000 m without derating; 5000 m with derating
- Warranty (in months)
- 18
Standards & Compliance
- HS Code
- 8536.90
Cross References
- EAN 3606481991744
- SAP 1200534345
- Code 82688632
Product Documentation
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Technical guides
Catalogue entry last verified: 2026-09-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy C12N4TM125B?
- C12N4TM125B can be ordered from cballast.com as a Schneider Electric catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Schneider Electric product?
- The manufacturer part number is C12N4TM125B.
- What is the HS code for C12N4TM125B?
- The customs tariff (HS) code for C12N4TM125B is 8536.90.
- Who manufactures C12N4TM125B?
- C12N4TM125B is a Schneider Electric product in the Electrical Components range.
- Is a datasheet available for C12N4TM125B?
- Yes — the C12N4TM125B datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for C12N4TM125B?
- The minimum order quantity is 1.
- Is C12N4TM125B available?
- Yes — C12N4TM125B is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
